Novel Light Coupling Systems Devised Using a Harmony Search Algorithm Approach

  • Imanol Andonegui
  • Itziar Landa-Torres
  • Diana Manjarres
  • Angel J. Garcia-Adeva
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 514)


We report a critical assessment of the use of an Inverse Design (ID) approach steamed by an improved Harmony Search (IHS) algorithm for enhancing light coupling to densely integrated photonic integratic circuits (PICs) using novel grating structures. Grating couplers, performing as a very attractive vertical coupling scheme for standard silicon nano waveguides are nowadays a custom component in almost every PIC. Nevertheless, their efficiency can be highly enhanced by using our ID methodology that can deal simultaneously with many physical and geometrical parameters. Moreover, this method paves the way for designing more sophisticated non-uniform gratings, which not only match the coupling efficiency of conventional periodic corrugated waveguides, but also allow to devise more complex components such as wavelength or polarization splitters, just to cite some.


Grating structure Photonic integrated circuit Improved harmony search 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Imanol Andonegui
    • 1
  • Itziar Landa-Torres
    • 2
  • Diana Manjarres
    • 2
  • Angel J. Garcia-Adeva
    • 1
  1. 1.Department of Applied Physics I.University of the Basque Country UPV/EHUVitoriaSpain
  2. 2.TECNALIADerioSpain

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